Alvis Tank: Hop into a spartan tank, with a powerful 4.2 litre engine that's straight out of the Jaguar E-Type. Passenger experience: Grab yourself an immersive Alvis CVR Tank passenger experience! Driving experience: Or why not upgrade and get behind the wheel of this monster vehicle! Tank specs: With a semi-automatic gearbox with 7 forward and reverse gears, meaning it'll do 50+ mph backwards. Valid: Valid all year round on selected Fri and Sat, 9am-4.30pm. Perfect for: The perfect experience for any adrenaline junkies! Passenger Alvis Cvr Tank Experience | Regional | Living Social